diff --git a/certidude/static/snippets/windows.ps1 b/certidude/static/snippets/windows.ps1
index c797ad7..578d1ef 100644
--- a/certidude/static/snippets/windows.ps1
+++ b/certidude/static/snippets/windows.ps1
@@ -1,3 +1,5 @@
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+
 # Install CA certificate
 @"
 {{ session.authority.certificate.blob }}"@ | Out-File ca_cert.pem